MiniMax: MiniMax M3 wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | MiniMax: MiniMax M3 | OpenAI: GPT-5.5 |
|---|---|---|
| Intelligence Index | 54.7 | 56.7✓ |
| Coding Index | 43.4 | 56.2✓ |
| GPQA Diamond | 93%✓ | 93% |
| Design Arena Elo | 1330 | 1354✓ |
| Speed (tokens/sec) | 48✓ | 37 |
| Latency | 572ms✓ | 3.6s |
| Input price /M | $0.300✓ | $5.00 |
| Output price /M | $1.20✓ | $30.00 |
| Context window | 1.0M | 1.1M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |